map sensor code from hell

[T4CRX]

I'm having a odd problem with code 3 (map sensor). The set up is as follows p28 W/ stage 3b. The car has run good for the past two months. Now today i goto the track & i have this stupid problem, i go into third & it starts to pick up speed then the mil pops on & it goes into limp mode i let off the gas the mil goes off. I limp the car off the track & the hole way back it does the same thing press the gas mil off the gas the mil goes off.
any one else have a problem similar, have all ready checked the basics, swaped map & checked wiring

[Hondata]

It sounds like a boost cut. Check if it occurs when you reduce the boost a little bit. The boost cut will cause the check engine light to come on solid, then will rev limit until the revs fall below 2000 rpm or you release the throttle.

[T4CRX]

i'm only running 6 psi & the boost cut is disabled. But thanks for the reply

[APZGSR]

Check for the ground cable in the transmision i had the same proble whit mine and it was the groud cable for the motor.